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Welcome to the Twilight Zone: The Mid-infrared Properties of Post-starburst Galaxies

Alatalo, Katherine; Bitsakis, Theodoros; Lanz, L; Lacy, Mark; Brown, M; French, K Decker; Ciesla, Laure; Appleton, P N; Beaton, Rachael; Cales, Sabrina L.; Kewley, Lisa; Medling, Anne; Urry, C M


We investigate the optical and Wide-field Survey Explorer (WISE) colors of "E+A" identified post-starburst galaxies, including a deep analysis of 190 post-starbursts detected in the 2 μm All Sky Survey Extended Source Catalog. The post-starburst galaxies appear in both the optical green valley and the WISE Infrared Transition Zone. Furthermore, we find that post-starbursts occupy a distinct region of [3.4]–[4.6] versus [4.6]–[12] WISE colors, enabling the identification of this class of...[Show more]

CollectionsANU Research Publications
Date published: 2017
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aa72eb


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